Cutter head and gauge



F. VOGEL.

CUTTER HEAD AND GAGE.v APPLICATION FLED NOV. 23, 1920.

1,420,068, Patented'Jun 20,v 1922.

e?? vir FLOYD VOGEL, OF HACKETTSTOWN, NEW JERSEY.

GUTTER HEAD AND GAUGE.

ardennes.

Specification of Letters Patent.

Patented J une 20, 1922.

Application filed November 23,1920. Serial No. 426,074.

1"0 all 107mm it may concer/1t:

Be it known that FLOYD Vooren a citizen olf the United States, residing at islackettstown,r in the county o'l1 lVarren and State ot New Jersey, has invented certain new and useful improvements in Cutter l-leads andA Gauges, ol which the following is a specitication.

lilly invention relates to a new and useiul improvement in cutter heads and gauges there'lfor, and especially to a cutter head and gauge used in the forming ot tapers on the end oiE sand cores.

The present practice is to l'orin a number oi blank sand cores in stock core machines, then cut these cores to the desired length and then taper the ends oi? the cores by filing them or holding the end against an emery wheel. Cutting the tapers in this way takes considerable time and the tapers formed are not accurate. Y

A n object of my invention is yto provide a means that will simplify the aliove procedure andcut the tapers vin an accurate manner.

Still another object of my invention is to provide a cutter head having a centrally loated detachable guiding sleeve on its front l" ace, a small central lopening in its rear 'lace and a plurality o1 cutters or knives. capable of adj ustment`r lorated radially o'l' the head. Also to provide a gauge to heuse-d with the cutter head, that has a central lug or pin on its Airont tace, designed to lit within the opening in the rear .tace of the cutter head. so that the knives may he adjusted whenever necessary, to take up the wear of the cutting edges. f

Still another object of my invention .is to provide a cutter head for tapering the ends ot the sand cores, and one that will taper the cores acclu'ately as to the length and degree ol? the taper; to provide an accurately centering gauge so that the knives may he quickly adjusted; either 'lor the different size tapers, between certain limits, or to take up the Wear ol` the cutting edges, so that the knives will he accurately positioned at all times.-

Still another object of my invention is to provide a cutter head. and gauge that may he made up in various sizes, the cutter head being provided with a detachable sleeve, so that sleeves may be made up in various sizes, that is, with relation to their internal di ameter, so that different size sleeves may he used on a cutter head thus not necessitating cutter head for every size taper desired. Numbers of each willloe made up so that a number oi cutting heads may be used on one machine, to thus multiply production, or just one may he used on nearly any 'form ot revolving spindle machine.

Still another' object of my invention is to provide a cutter head and gauge, wherein the gauge may loeV quickly inserted in the cutter head and by simply moving three set screws the knives may he set to conform with the selected gauge.

lVith these and numerous other objects in view as will he disclosed as the invention proceeds my invention consists in certain new and novel constructions and combination oli parts as will be hereinait'ter more fully described and pointed out in the claims.

Referring now to the drawings showing a preferred `form of the invention:

Fig. l. is a central longitudinal section of the cutter with the gauge shown in place;

Fig. 2 is a transverse sectional view on line 2-2 of Fig. l;

Fig. 3 is an end view of the cutter head;

Fig. 4 is aside elevation with the gauge removed; and

Fig. 5 is a detail of the gauge.

Referring now to the several ligures in detail, a cutter head l, is shown, having the rearwardly extending boss 2, which is tapered and internally threaded as at 3, while in the rear tace 4, of the head and centrally thereof is provided the small opening` 5.

The cutter head is provided with the three radial cut-out portions 6. as clearly shown in Fig. 2, through which the waste is designed to pass, while located radially of the cutter head and substantially oil center are three slots 7, for the reception of the knives 8.

By positioning these slots and knives as mentioned an edge is at all times presented to thework and tends to keep the knives in proper condition. A set screw 9. is pro vided for each knife so that the knives ymay he adjusted according to the work to be done or as the edges wear down the set screws may he loosened, the knives pushed inwardly and the screws again setto tightly hold the knives in their adjusted position.

These knives are tapered at their cutting edge l0, and the different heads of course may be provided with different tapered knives, so that any size taper may be cut on the core, as'V required. n

Formed in the hody of the cutter head is a central pocket or chamber 11, which also tap-ers from its forward end to its rear7 into which extend the cutting edges 10 of the knives 8, and into which pocket the Work eX tends.

In` the front of the cutter head is the slightly depressed rim portion to thereby provide or form the positionin lugs or faces 12 which are provided in turn with the internally threaded holes 13 tor the reception of the fastening or retaining screws 111 which are placed about the rim 15 oi a detachable centering sleeve 16.

This sleeve 16 is for correctly centerine a gauge 17 and the core on its insertion to the knives 8. and is of suilicient ienoth to provide against any movement oi the core troni its correct alignment with the knives in the cutter head. A number of diiierent site sleeves may be used with one cutter head. that is a sleeve of one inch (internal diameter of opening) 1l. 1-l; or the l and the eighths etc.. up to two inches may be used with the one cutter head. ivhilea number in the same proportionate size may he used With a larger cutter head.

Referring noiv to the pranzare 1i' to he used in conjunction with the cutter head. it ivill be seen that it consists oi the hody 1S, the knurled handle 19. the forward tapered 'ind 20. and the small central alijrninel lun' 21 on its front face. v

ln Fig. 1 is shown the gauge inserted within the cutter head. 'the lug or pinV 2i. fitting; Within the sinall openingv Ti heretofore "c ferred to. It the cutting' edsjes ot the knives have Worn and4 do not contact or register exactly with the tapered sui-tace oit the ,qanege the set screws 9 ivill be loosened. the blaf correctly positioned and the set srren's a. I tightened.` and ot course the operation is ihn same it a different size taper is desired.

By providingY the sleeve 1G ou the tace ot the cutter head with the opening `il in the rear faceot the cutter head.` th ruwe with the lug` 21 thereon fitting' Within die A eniug 5 will be accurately centered and iron; which the knives may be accurately and correctly positioned or adjusted.

The gauge Will then be removed and he core passed through the sleeve lf3 aud be curately guided to the knives Si which vill tormthe taper quickly and u'curately. After constant usage and wear the knives may be again gaged and adj usted it tound necessary.

These gauges oit course are made up in all standard sizes looth as to length and degree oi taper, as Well as the cutter heads. sleeves ot the cutter heads and knives, so that with complete sets olf these cutter heads and garages, any sir/.e core taper may be made.

l? rom the ioregoing it will be seen that l have provided a cutter head and gauge that may be made up in any and all sizes. that will quickly and accurately taper the material Worked upon. and Wherei n the knives may be accurately adjusteiil. or as they Wear they may he brought up to a standard.

[is before n'ientioned. cutter heads aan he used in multiples. in tact they are in use with as many as tive ve on each machine.` or they car-.be applied singly te any 'form oi n'iachine having; the ordinary revolving' spindle.

lt is to be urulerstood that although l have mentioned these heads as 1s iecialiv :niapted` tor tapering' cores. they may he used ior cutting any articles calling' Vtor an accurate taper at its end.

Also many slight cl'langres may be made as to torni or arrangement ot parts without in any Way depart ugr `from the spirit and scope of the present invention.

lilaving;` thus described my invention. what l claim as nen7 and desire to secure by '.lietters Patent is 1. A cutter head comprisingy a body havi n.15; a chamber. a knite mounted upon the body andV extending' into the chamber. the bodyY being provided at the opposite sides of the chamber thereoic ivith Work centeriiug; means Which are lined with relation to .hc body and unalterably inonntev'l with relation to each other. the parus beine' so armneed that the Work centering means niay receive hnished and spaced portions o'l a piece o l3 work whereby an uniinished ii'iterinediate portion oit the Work may traverse the charnher and is centered therein and accurately positioned tor final dressingby the knife.

in. rmnbination with a gauge havingv a tapered end portion and a centrally hicated Jforwardlyi enteralinn` lug, a cutter head (oinprisingr a body. chamber in said body and passagreivays extending from the outer suriace ot the body to said chamber. knives in said head arranguvl radially thereof and e\- 'tendine' within said rhainber. sa id knives a djustable in said head and means AFor holdingil them in a set position. a sleeve secured to the 'face of the ciuter head. and an extension on the rear o' the cutter head adapted to be secured to a revolvinj;l member. the rear mail o'i the hody provided with au opening' tkercin and arranged .'eniii'ally thereo'l and o i the said chamber and adapted to receive the lugfj ot the range so that the knives in said herd may be accurately centered and :nl iusted to th e tapered portion olf said grange.

In testimony whereof l atlif; my signature.

FLOYD VOGEL. 

